| signal s. |
a sequence of 15 to 30 amino acids occurring at the N-terminal of the precursors of secretory proteins; it is required for transport of the protein across the membrane of the rough endoplasmic reticulum into the cisternae, where it is immediately cleaved off by an endopeptidase. Called also leader s. and signal peptide.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| signal t. |
the process by which a cell receives and acts on some external chemical or physical signal, such as a hormone, including receiving the information at specific receptors in the plasma membrane, conveying the signal across the plasma membrane into the cell, and subsequently inducing an intracellular chain of other signalling molecules, thereby stimulating a specific cellular response.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| signal-to-noise r. |
the ratio between the amplitude of a signal being measured and that of the noise (q.v.).
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| signal |
A variation in an electrical current that represents pressure changes (sound). Most audio signals are alternating currents, reversing direction according to how often the signal crosses zero level.
출처: www.hometheatertalk.com/Glossary/Glossary2/glossar...
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| signal-to-noise ratio |
The ratio between the received signal power and the noise at the receiver of a communications system. In molecular biology, the equivalent is the energy dissipated divided by the thermal noise. See channel capacity
출처: www-lmmb.ncifcrf.gov/~toms/glossary.html
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